Oliyee h



(No Model.)

O. H. TAYLOR.

LOCK HINGE.

110,850,851. Patented 008. 18,1888.

N PETERS, Phcmrmnognpnnr, wnmingwn. D. c.

UNITED 'STATES OLIVER H. TAYLOR, OF BROOKLYN, ASSIGNOR TO BENJAMINv C. ANDERSON, OF NEV YORK, N. Y.

LOCK-HINGE.

SPECIFICATION forming part of Letters Patent No. 350,851l dated October l2l 1886.

Application filed AMarch 25, 186.

To @ZZ whom it may concern:

Be it known that I, OLIVER H. TAYLOR, of Brooklyn, Kings county, in the State of New York, have invented a certain new and useful 5 Improvement in Lock-Hinges, of which the following is a specication.

My improved hinge is intended more especially for window-blinds, and will be described as so applied. It holds the blind in the open :o position. It engages automatically and is arranged to be braced and sustained eiliciently against the great force liable to be impressed on it in severe gales. The two principal parts of the hinge may be of an ordinary construction.

The invention requires only a peculiarlyformed dog and a pivot for connecting it, so that it may rise and sink to be engaged and disengaged. Its form guards against its sinking or risingbeyond the required limits.

Theaccompanying drawings form a part of this specification, and' represent what I consider the best means of carrying out theinvention.

Figure l is a plan View of the hinge. The adjacent portion of the building is shown in section. Fig. 2is an elevation ofthe hinge as seen from the left in Fig. l. Fig. 8 is a front viewcorresponding to Fig. 2. Figs. 4 and 5 3o show a modification. Fig. 4 is a plan view, and Fig. 5 is a front elevation. f

Similar letters of Vreference indicate corresponding parts in all `the gures where they occur.

A is a portion of the building, B Ya plate fastened thereon, B an arm extending out therefrom, and B2 a pintle mounted in B. To the blind C is fixed a stout angular iron, D, having an arm, D', carrying a socket, D2, which 4c engages Yon the pintle B2. So far as yet described the hinge is an ordinary and long-approved construction,with the parts so arranged that when the blind is open thearms B D shall lie in or near the Asame plane extending 4,5 outward from a building.

M is a peculiarly-formed dog, of steel or other suitable material, madev by drop-forging or otherwise in the form represented. Certain portions will be designated, when necessary,

force-as So long as the blind is down finger'applied t0 the dog M will lift it enough 8o `proportions without departing from the prin- Serial No. 196,481. (No model.)

by additional marks, as M M2, Src.l It is con- 5o nected to the arm B by a stout pivot, P, and

is formed and bent as shown. The outer end having an arm, M, describes an arc of which the pintle B2 is the center, and the lower side of which is beveled, as shown, and provided with a notch, m, adapted to strongly engage with and hold the part D when the blind is fully open. The body M of the dog lies close alongside of the parts B D, and when any a strong wind*tends to shut the blind the dog M is braced and supported against the hinge, as will be obvious. Its corner M2 striking the plate B supports the dog against sinking too low, and the corner 1W1l striking the same plate at a higher point guards it against being thrown up too high Aby any force, as by a sudden impulse in throwing the blind violently open. The bevel on the under side of M adapts it to engage automatically when the blind is thrown open. 7o To unlock and allow the blind to be'closcd, it is necessary simply to apply the finger to the arm M and lift the dog.

One important advantage of my invention is the security it gives yagainst the blind being lifted. Vhen the dog M is engaged, it not only holds it reliably open, but also guards against its being lifted by wind or other force. in its place a to allow the blind to be closed. Vhenever itA is required to unhang the blind, for repairing or other purpose, the blind may be lifted out of engagement with the hinge by simply lifting the dog and partially closing the blind; but so long as the dog is engaged the blind cannot be lifted off. Any lifting force applied to the blind will raise it a little Way, carrying the dog with it; but so soon as the corner M3 strikes the plate B the dog cannot 9o lift higher and the blind cannot raise higher.

It is ei'ectually guarded against being unhung while the dog is engaged.

Modifications may be made in the forms and ciple or sacrificing the advantages of the involition.

Figs. 4 and 5 show a form adapted to serve the stop to prevent the dog from sinking too low, and the same part serves, being struck by another portion of the dog, as a check to prevent the dog being thrown up too high. This form of the device automatically engages and is disengaged by the same action as the other. l

I claim as my invention` l v The combination, with the blind-hinge B 2o 4B2 D', of the dog M, pivoted to the part B',

and having an arm, M', formed in an arc having the pi'ntle B2 for a center, and provided with an engaging-notch, m, and means for holding said dog against an upward movement sufficient to disengage the two parts of the hinge when the dog is in operation, as set forth. In testimony whereof I have hereunto set my hand, at New York city, this 18th day of March,

1856, in the presence of two subscribing wit- 3oV nesses. Y

OLIVER H. TAYLOR.

Witnesses:

f F. A. BOYLE,

H. A. J oHNsToNE. 

